CN108519160B - method and device for correcting nonuniformity of infrared detector - Google Patents
method and device for correcting nonuniformity of infrared detector Download PDFInfo
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- CN108519160B CN108519160B CN201810307763.9A CN201810307763A CN108519160B CN 108519160 B CN108519160 B CN 108519160B CN 201810307763 A CN201810307763 A CN 201810307763A CN 108519160 B CN108519160 B CN 108519160B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 142
- 238000006073 displacement reaction Methods 0.000 claims abstract description 105
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 239000002699 waste material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
Abstract
the embodiment of the invention discloses a non-uniformity correction device and a method for correcting non-uniformity of an infrared detector by using the non-uniformity correction device. The device is provided with a plurality of thermostats and a plurality of black bodies with different temperatures, and the plurality of black bodies can be controlled to move into the detection range of the infrared detector testing device in each thermostat in sequence through the displacement motor, so that the infrared detector testing devices can use the plurality of black bodies in sequence to carry out non-uniformity correction on the infrared detector in the infrared detector testing devices. Thus, the multi-point correction of the infrared detector in each infrared detector testing device can be conveniently realized.
Description
Technical Field
The invention relates to the field of infrared detectors, in particular to a non-uniformity correction device and a method for correcting non-uniformity of an infrared detector by using the same.
Background
Currently, due to the limitation of the manufacturing process of the infrared detector, in the specific manufacturing process, the response performance is difficult to ensure to be completely consistent among all pixels, so that various non-uniform phenomena of images appear in actual imaging. However, the current common processing method adopts a one-point, two-point or even multi-point correction mode to artificially correct the response of each pixel of the detector to be uniform under the condition of uniform blackbody radiation. Theoretically, the larger the number of points corrected, the more accurate the correction result. However, in consideration of actual software and hardware conditions, a two-point calibration method is mostly adopted during calibration, and the existing calibration device can only calibrate one infrared detector. Therefore, the correction accuracy is difficult to meet the high-precision application requirement, and the phenomena of low correction efficiency and waste of manpower and material resources exist.
Disclosure of Invention
an object of the present invention is to provide a nonuniformity correction apparatus and a method for correcting nonuniformity of an infrared detector using the same, by which nonuniformity of an infrared detector can be corrected more efficiently in a batch manner and with high accuracy.
in one embodiment, a method for correcting non-uniformity of an infrared detector using a non-uniformity correction apparatus is provided, wherein:
The correction device includes:
The infrared detector testing devices are arranged in the constant temperature box to which the infrared detector testing devices belong along a second direction, and each infrared detector testing device in the infrared detector testing devices can carry out non-uniformity correction on one or more infrared detectors;
the displacement motor platform is provided with a plurality of black bodies and at least one displacement motor, the black bodies have different temperatures and are arranged on the displacement motor platform along the first direction, the at least one displacement motor can drive the black bodies to move on the displacement motor platform along the opposite directions of the first direction and along the opposite directions of the second direction and the second direction, and the movement paths of the black bodies pass through the detection range of the infrared detector testing devices;
The method comprises the following steps:
driving a first black body and a second black body of the plurality of black bodies to move on the displacement motor platform along the first direction by using the at least one displacement motor, so that the first black body enters a detection range of one infrared detector test device of a plurality of infrared detector test devices in a first incubator of the plurality of incubators;
The infrared detector testing device carries out non-uniformity correction on the infrared detector in the infrared detector testing device by using the first black body;
driving the first black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest of the infrared detector testing devices sequentially use the first black body to perform non-uniformity correction on the infrared detectors in the first black body;
Driving a first black body and a second black body of the plurality of black bodies to move continuously on the displacement motor platform along the first direction by using the at least one displacement motor, so that the first black body enters a detection range of one of a plurality of infrared detector testing devices in a second incubator of the plurality of incubators and the second black body enters a detection range of one of the plurality of infrared detector testing devices in the first incubator;
The infrared detector testing device in the second thermostat performs non-uniformity correction on the infrared detector in the second thermostat by using the second black body;
The infrared detector testing device in the first thermostat performs non-uniformity correction on the infrared detector in the first thermostat by using the first black body;
driving the first black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest of the infrared detector testing devices in the second thermostat sequentially use the first black body to perform non-uniformity correction on the infrared detectors therein;
and driving the second black body to move along the second direction and/or the direction opposite to the second direction on the displacement motor platform by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest infrared detector testing devices in the first thermostat sequentially use the second black body to carry out non-uniformity correction on the infrared detectors in the second black body.
in one embodiment, the first direction and the second direction are perpendicular to each other.
In one embodiment, the temperature of the first black body is less than the temperature of the second black body.
In one embodiment, the displacement motor platform includes a first rail extending in the first direction and a second rail extending in the second direction, the second rail being disposed on the first rail and movable relative to the first rail in the first direction and a direction opposite to the first direction, and at least a portion of the plurality of black bodies is disposed on the second rail and movable relative to the second rail in the second direction and a direction opposite to the second direction.
In one embodiment, the first black body has a first temperature and the second black body has a second temperature, the method further comprising:
adjusting a temperature of the first black body to the second temperature, and adjusting a temperature of the second black body to the first temperature;
driving a first black body and a second black body in the plurality of black bodies to move on the displacement motor platform along the direction opposite to the first direction by using the at least one displacement motor, so that the second black body enters the detection range of one infrared detector testing device in the plurality of infrared detector testing devices in a second incubator in the plurality of incubators;
The infrared detector testing device carries out non-uniformity correction on the infrared detector in the infrared detector testing device by using the second black body;
driving the second black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest of the infrared detector testing devices sequentially use the second black body to perform non-uniformity correction on the infrared detectors in the second black body;
driving the first black body and the second black body to continue to move on the displacement motor platform along the direction opposite to the first direction by using the at least one displacement motor, so that the second black body enters the detection range of one of the plurality of infrared detector testing devices in a first incubator of the plurality of incubators and the first black body enters the detection range of one of the plurality of infrared detector testing devices in a second incubator;
the infrared detector testing device in the first thermostat performs non-uniformity correction on the infrared detector in the first thermostat by using the second black body;
The infrared detector testing device in the second thermostat performs non-uniformity correction on the infrared detector in the second thermostat by using the first black body;
Driving the second black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest of the infrared detector testing devices in the first thermostat sequentially use the second black body to perform non-uniformity correction on the infrared detectors therein;
And driving the first black body to move along the second direction and/or the direction opposite to the second direction on the displacement motor platform by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest infrared detector testing devices in the second thermostat sequentially use the first black body to carry out non-uniformity correction on the infrared detectors in the first black body.
In one embodiment, there is provided a nonuniformity correction apparatus comprising:
The infrared detector testing devices are arranged in the constant temperature box to which the infrared detector testing devices belong along a second direction, and each infrared detector testing device in the infrared detector testing devices can carry out non-uniformity correction on one or more infrared detectors;
The displacement motor platform is provided with a plurality of black bodies and at least one displacement motor, the black bodies have different temperatures and are arranged on the displacement motor platform along the first direction, the at least one displacement motor can drive the black bodies to move on the displacement motor platform along the first direction, the direction opposite to the first direction and the direction opposite to the second direction, and the movement paths of the black bodies pass through the detection range of the infrared detector testing devices.
In one embodiment, the first direction and the second direction are perpendicular to each other.
in one embodiment, the temperature of the first black body is less than the temperature of the second black body.
in one embodiment, the displacement motor platform includes a first rail extending in the first direction and a second rail extending in the second direction, the second rail being disposed on the first rail and movable relative to the first rail in the first direction and a direction opposite to the first direction, and at least a portion of the plurality of black bodies is disposed on the second rail and movable relative to the second rail in the second direction and a direction opposite to the second direction.
In the embodiment of the invention, a plurality of thermostats and black bodies with different temperatures are arranged, and the black bodies can be controlled to sequentially move into the detection range of the infrared detector testing device in each thermostat through the displacement motor, so that the infrared detector testing devices can sequentially use the black bodies to carry out non-uniformity correction on the infrared detectors in the infrared detector testing devices. Thus, the multi-point correction of the infrared detector in each infrared detector testing device can be conveniently realized. And, the displacement motor drives a plurality of black bodies to move, and a plurality of black bodies can enter the infrared detector testing devices of different thermostats or the detection ranges of the infrared detector testing devices positioned on different rows in the same thermostat respectively, so that the infrared detector testing devices in the number corresponding to the number of the black bodies can work simultaneously at the same moment, and therefore the non-uniformity correction can be carried out on the infrared detectors at the same moment, and the position of each black body does not need to be adjusted manually. Therefore, the efficiency of correcting the nonuniformity of the infrared detector can be greatly improved, and the waste of human resources is reduced.
drawings
Fig. 1 is a schematic perspective view of a nonuniformity correction apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic top view of a non-uniformity correction apparatus according to an embodiment of the present invention.
Detailed Description
A non-uniformity correction apparatus and a method for correcting a non-uniformity of an infrared detector using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
referring to fig. 1 and 2, in one embodiment of the present invention, an apparatus for correcting non-uniformity of an infrared detector may include a plurality of incubators (e.g., 101, 102, and 103 of fig. 1 and 2), a displacement motor platform (e.g., 2 of fig. 1 and 2), and a plurality of black bodies (e.g., 301, 302, and 303 of fig. 1 and 2).
the plurality of incubators may be arranged in a first direction (e.g., a direction indicated by an arrow a in fig. 1 and 2). Each oven is provided with a plurality of infrared detector testing devices (e.g., 104 in fig. 1 and 2). The plurality of infrared detector testing devices are arranged in a second direction (e.g., the direction indicated by arrow B in fig. 1 and 2) in the oven to which they belong. Each of the plurality of infrared detector testing devices is capable of performing non-uniformity correction on one or more infrared detectors. The number of incubators may be set as needed in the actual situation, and may be set to 2, 3, 4, 5, 6, or more, for example. In each oven, a row of infrared detector testing devices may be included, arranged along the second direction, and multiple rows of infrared detector testing devices may be included. The number of the infrared detector testing devices in each row can also be set according to requirements.
The displacement motor platform 2 may be provided with a plurality of black bodies (e.g., 301, 302, and 303 in fig. 1 and 2) and at least one displacement motor (not shown). The plurality of black bodies may have different temperatures and be arranged in the aforementioned first direction on the displacement motor platform 2. The at least one displacement motor can drive the black bodies to move on the displacement motor platform 2 along the first direction and the direction opposite to the first direction and along the second direction and the direction opposite to the second direction, and the movement paths of the black bodies pass through the detection range of the infrared detector testing devices.
the specific number of black bodies on the displacement motor platform 2 may be set according to the actual needs (e.g., the required accuracy of the non-uniformity correction or the adopted non-uniformity correction method, etc.), for example, 2, 3, 4, 5 or more black bodies may be set. The temperature of each black body may not be the same.
the displacement motor provided on the displacement motor platform 2 may be a conventional motor, such as a stepper motor or other suitable type of motor. The number of displacement motors can be set according to actual conditions. For example, one displacement motor may be provided, by which all black bodies provided on the displacement motor platform 2 are driven to move. Alternatively, a displacement motor may be provided separately for each black body. Alternatively, a part of the plurality of black bodies disposed on the displacement motor platform 2 may share one displacement motor, and another part may share another displacement motor. The displacement motor can also be arranged in other suitable ways according to the requirements of the actual situation.
In one embodiment, the displacement motor platform 2 may include a first rail 201 and a second rail 202. The first guide rail 201 extends in the aforementioned first direction. The second rail 202 extends in the aforementioned second direction. The second rail 202 is provided on the first rail 201 and is movable relative to the first rail 201 in the first direction and in the opposite direction to the first direction. The aforementioned plurality of black bodies are disposed on the second guide rail 202 and are movable in the second direction and the opposite direction to the second direction with respect to the second guide rail 202.
The second guide rail 202 and the first guide rail 201 may be connected by a common kinematic pair connection structure, such as a slide-and-groove structure, a gear-and-rack structure, a worm-and-gear structure, or other structures capable of driving the second guide rail 202 to move relative to the first guide rail 201 in the extending direction of the first guide rail 201 by a motor.
each black body and the second guide rail 202 may be connected by a common kinematic pair connection structure, such as a sliding rail-sliding groove structure, a gear-rack structure, a worm-gear structure, or other structures capable of driving the black body to move relative to the second guide rail 202 in the extending direction of the second guide rail 202 by a motor.
The first rail 201 may be a single rail or a plurality of rails. For example, the first rail 201 in the embodiment of fig. 1 and 2 includes two rails.
The number of the second guide rails 202 can also be set according to the actual requirements. For example, one second guide rail may be provided separately for each black body. Alternatively, a plurality of black bodies may be disposed on the same second guide rail.
the displacement motor driving the second guide rail 202 to move relative to the first guide rail 201 and the displacement motor driving the black body to move relative to the second guide rail 202 may be the same displacement motor or different motors.
here, the detection range of the infrared detector testing device refers to a spatial range in which the infrared detector testing device can receive radiation from a black body and can perform non-uniformity correction on an infrared detector therein by using the black body.
In an embodiment of the present invention, a method for correcting the non-uniformity of the infrared detector using the non-uniformity correction apparatus includes the following steps.
First, a first black body (e.g., 301 in fig. 1 and 2) and a second black body (e.g., 302 in fig. 1 and 2) among the plurality of black bodies may be driven to move on the displacement motor platform 2 in the aforementioned first direction a by the aforementioned at least one displacement motor, so that the first black body 301 enters a detection range of one infrared detector testing device among the plurality of infrared detector testing devices in a first oven (e.g., 101 in fig. 1 and 2) among the plurality of incubators. Then, this infrared detector testing apparatus performs non-uniformity correction of the infrared detector therein with the first black body 301.
Then, the first black body 301 is driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the second direction B and/or the opposite direction of the second direction B, so that the first black body 301 sequentially enters the detection range of the rest of the plurality of infrared detector testing apparatuses in the first oven 101, and the rest of the infrared detector testing apparatuses sequentially use the first black body 301 to perform non-uniformity correction on the infrared detectors therein.
Under the condition that a plurality of rows of infrared detector testing devices are arranged in a first thermostat, a displacement motor can drive a first black body and a second black body to continuously move along a first direction, so that the first black body enters a detection range of the second row of infrared detector testing devices in the first thermostat, the infrared detector testing devices can carry out non-uniformity correction on infrared detectors in the first black body by using the first black body, then the first black body is driven to move in a second direction, the first black body enters detection ranges of other infrared detector testing devices of the second row of infrared detector testing devices, and the other infrared detector testing devices in the second row can carry out non-uniformity correction on the infrared detectors in the second row by using the first black body.
Then, the first and second black bodies 301 and 302 are driven by the aforementioned at least one displacement motor to move continuously in the first direction a on the displacement motor platform 2, so that the first black body 301 enters the detection range of one of the plurality of infrared detector testing apparatuses in the second oven (e.g., 102 in fig. 1 and 2) of the aforementioned plurality of ovens and the second black body 302 enters the detection range of one of the plurality of infrared detector testing apparatuses in the first oven 101. At this time, the one infrared detector testing apparatus in the second oven 102 performs the non-uniformity correction of the infrared detector therein with the first black body 301, while the one infrared detector testing apparatus in the first oven 101 performs the non-uniformity correction of the infrared detector therein with the second black body 302.
then, the first black body 301 is driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the second direction B and/or the opposite direction of the second direction B, so that the first black body 301 sequentially enters the detection range of the rest of the plurality of infrared detector testing apparatuses in the second oven 102, and the rest of the infrared detector testing apparatuses in the second oven 102 sequentially use the first black body 301 to perform non-uniformity correction on the infrared detectors therein.
Meanwhile, the second black body 302 is driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the second direction B and/or the opposite direction of the second direction B, so that the second black body 302 sequentially enters the detection range of the rest of the plurality of infrared detector testing apparatuses in the first incubator 101, and the rest of the infrared detector testing apparatuses in the first incubator 101 sequentially use the second black body 302 to perform non-uniformity correction on the infrared detectors therein.
In the foregoing embodiments, the first direction and the second direction may be perpendicular to each other. In some embodiments, the first direction and the second direction may intersect but are not perpendicular to each other.
In one embodiment, the temperature of the first black body is less than the temperature of the second black body. For example, the first black body may have a first temperature, the second black body may have a second temperature, and the first temperature is less than the second temperature.
in one embodiment, after the movement in direction a and the correction process are completed, a similar process may be performed in the opposite direction (i.e., opposite direction to direction a), as described below.
For example, in one embodiment, the temperature of the first black body may be adjusted to the second temperature (i.e., adjusted to the temperature of the original second black body), and the temperature of the second black body may be adjusted to the first temperature (i.e., adjusted to the temperature of the original first black body). Then, the first black body 301 and the second black body 302 are driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the opposite direction of the first direction a, so that the second black body 302 enters the detection range of one of the plurality of infrared detector testing apparatuses in the second oven 102 of the plurality of ovens. At this time, the one infrared detector testing apparatus performs non-uniformity correction of the infrared detector therein with the second black body 302.
then, the aforementioned at least one displacement motor is used to drive the second black body 302 to move on the displacement motor platform 2 along the second direction B and/or the direction opposite to the second direction B, so that the second black body 302 sequentially enters the detection range of the rest of the plurality of infrared detector testing apparatuses in the second oven 102, and the rest of the infrared detector testing apparatuses sequentially use the second black body 302 to perform non-uniformity correction on the infrared detectors therein.
then, the first black body 301 and the second black body 302 are driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the opposite direction of the first direction a, so that the second black body 302 enters the detection range of one of the plurality of infrared detector testing apparatuses in the first incubator 101 and the first black body 301 enters the detection range of one of the plurality of infrared detector testing apparatuses in the second incubator 102. At this time, the one infrared detector testing apparatus in the first oven 101 performs the non-uniformity correction of the infrared detector therein with the second black body 302, and the one infrared detector testing apparatus in the second oven 102 performs the non-uniformity correction of the infrared detector therein with the first black body 301.
then, the second black body 302 is driven by the aforementioned at least one displacement motor to move on the displacement motor platform 2 in the second direction B and/or the opposite direction of the second direction B, so that the second black body 302 sequentially enters the detection range of the rest of the plurality of infrared detector testing apparatuses in the first incubator 101, and the rest of the infrared detector testing apparatuses in the first incubator 101 sequentially use the second black body 302 to perform non-uniformity correction on the infrared detectors therein. Meanwhile, the first black body 301 is driven by at least one displacement motor to move on the displacement motor platform 2 in the second direction B and/or the opposite direction of the second direction B, so that the first black body 301 sequentially enters the detection range of the rest of the plurality of infrared detector testing devices in the second incubator 102, and the rest of the infrared detector testing devices in the second incubator 102 sequentially use the first black body 301 to perform non-uniformity correction on the infrared detectors therein.
in the foregoing embodiment, the specific steps of the infrared detector testing apparatus using the black body to perform the non-uniformity correction on the infrared detector therein may be common non-uniformity correction steps, and are not described in detail herein.
In the embodiment of the invention, a plurality of thermostats and black bodies with different temperatures are arranged, and the black bodies can be controlled to sequentially move into the detection range of the infrared detector testing device in each thermostat through the displacement motor, so that the infrared detector testing devices can sequentially use the black bodies to carry out non-uniformity correction on the infrared detectors in the infrared detector testing devices. Thus, the multi-point correction of the infrared detector in each infrared detector testing device can be conveniently realized. And, the displacement motor drives a plurality of black bodies to move, and a plurality of black bodies can enter the infrared detector testing devices of different thermostats or the detection ranges of the infrared detector testing devices positioned on different rows in the same thermostat respectively, so that the infrared detector testing devices in the number corresponding to the number of the black bodies can work simultaneously at the same moment, and therefore the non-uniformity correction can be carried out on the infrared detectors at the same moment, and the position of each black body does not need to be adjusted manually. Therefore, the efficiency of correcting the nonuniformity of the infrared detector can be greatly improved, and the waste of human resources is reduced.
The present invention has been described above with reference to specific examples, but the present invention is not limited to these specific examples. It will be understood by those skilled in the art that various changes, substitutions of equivalents, variations, and the like can be made thereto without departing from the spirit of the invention, and the scope of the invention is to be determined from the following claims. Furthermore, the various references to "one embodiment" above refer to different embodiments, which may, of course, be combined in whole or in part in a single embodiment.
Claims (5)
1. A method of correcting non-uniformity of an infrared detector using a non-uniformity correction apparatus, characterized by:
the correction device includes:
The infrared detector testing devices are arranged in the constant temperature box to which the infrared detector testing devices belong along a second direction, and each infrared detector testing device in the infrared detector testing devices can carry out non-uniformity correction on one or more infrared detectors;
The displacement motor platform is provided with a plurality of black bodies and at least one displacement motor, the black bodies have different temperatures and are arranged on the displacement motor platform along the first direction, the at least one displacement motor can drive the black bodies to move on the displacement motor platform along the opposite directions of the first direction and along the opposite directions of the second direction and the second direction, and the movement paths of the black bodies pass through the detection range of the infrared detector testing devices;
the method comprises the following steps:
driving a first black body and a second black body of the plurality of black bodies to move on the displacement motor platform along the first direction by using the at least one displacement motor, so that the first black body enters a detection range of one infrared detector test device of a plurality of infrared detector test devices in a first incubator of the plurality of incubators;
the infrared detector testing device carries out non-uniformity correction on the infrared detector in the infrared detector testing device by using the first black body;
Driving the first black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest of the infrared detector testing devices sequentially use the first black body to perform non-uniformity correction on the infrared detectors in the first black body;
driving a first black body and a second black body of the plurality of black bodies to move continuously on the displacement motor platform along the first direction by using the at least one displacement motor, so that the first black body enters a detection range of one of a plurality of infrared detector testing devices in a second incubator of the plurality of incubators and the second black body enters a detection range of one of the plurality of infrared detector testing devices in the first incubator;
The infrared detector testing device in the second thermostat performs non-uniformity correction on the infrared detector in the second thermostat by using the first black body;
The infrared detector testing device in the first thermostat performs non-uniformity correction on the infrared detector in the first thermostat by using the second black body;
Driving the first black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest of the infrared detector testing devices in the second thermostat sequentially use the first black body to perform non-uniformity correction on the infrared detectors therein;
And driving the second black body to move along the second direction and/or the direction opposite to the second direction on the displacement motor platform by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest infrared detector testing devices in the first thermostat sequentially use the second black body to carry out non-uniformity correction on the infrared detectors in the second black body.
2. The method of claim 1, wherein: the first direction and the second direction are perpendicular to each other.
3. The method of claim 1 or 2, wherein: the temperature of the first black body is less than the temperature of the second black body.
4. the method of claim 1 or 2, wherein: the displacement motor platform includes a first rail extending in the first direction and a second rail extending in the second direction, the second rail being disposed on the first rail and movable in a direction opposite to the first direction with respect to the first rail, and the plurality of black bodies being disposed on the second rail and movable in a direction opposite to the second direction with respect to the second rail.
5. The method of claim 1 or 2, wherein the first black body has a first temperature and the second black body has a second temperature, the method further comprising:
adjusting a temperature of the first black body to the second temperature, and adjusting a temperature of the second black body to the first temperature;
driving a first black body and a second black body in the plurality of black bodies to move on the displacement motor platform along the direction opposite to the first direction by using the at least one displacement motor, so that the second black body enters the detection range of one infrared detector testing device in the plurality of infrared detector testing devices in a second incubator in the plurality of incubators;
the infrared detector testing device carries out non-uniformity correction on the infrared detector in the infrared detector testing device by using the second black body;
Driving the second black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest of the infrared detector testing devices sequentially use the second black body to perform non-uniformity correction on the infrared detectors in the second black body;
Driving the first black body and the second black body to continue to move on the displacement motor platform along the direction opposite to the first direction by using the at least one displacement motor, so that the second black body enters the detection range of one of the plurality of infrared detector testing devices in a first incubator of the plurality of incubators and the first black body enters the detection range of one of the plurality of infrared detector testing devices in a second incubator;
The infrared detector testing device in the first thermostat performs non-uniformity correction on the infrared detector in the first thermostat by using the second black body;
the infrared detector testing device in the second thermostat performs non-uniformity correction on the infrared detector in the second thermostat by using the first black body;
Driving the second black body to move on the displacement motor platform along the second direction and/or the direction opposite to the second direction by using the at least one displacement motor, so that the second black body sequentially enters the detection ranges of the rest of the infrared detector testing devices in the plurality of infrared detector testing devices in the first thermostat, and the rest of the infrared detector testing devices in the first thermostat sequentially use the second black body to perform non-uniformity correction on the infrared detectors therein;
and driving the first black body to move along the second direction and/or the direction opposite to the second direction on the displacement motor platform by using the at least one displacement motor, so that the first black body sequentially enters the detection ranges of the rest infrared detector testing devices in the plurality of infrared detector testing devices in the second thermostat, and the rest infrared detector testing devices in the second thermostat sequentially use the first black body to carry out non-uniformity correction on the infrared detectors in the first black body.
Priority Applications (1)
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| CN105466562A (en) * | 2014-09-09 | 2016-04-06 | 南京理工大学 | Thermal imager calibration device and method through combination of non-uniformity calibration and temperature calibration |
| CN106644091A (en) * | 2016-12-30 | 2017-05-10 | 电子科技大学 | Infrared heat thermal imaging movement calibration device and calibration method therefor |
| CN107340064A (en) * | 2017-07-14 | 2017-11-10 | 中国计量大学 | Thermal imaging system heterogeneity evaluation means for correcting based on scan rectangle black matrix |
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